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    CVE-2009-1313

    The nsTextFrame::ClearTextRun function in layout/generic/nsTextFrameThebes.cpp in Mozilla Firefox 3.0.9 allows remote attackers to cause a denial of service (memory corruption) and probably execute arbitrary code via unspecified vectors. NOTE: this vulnerability reportedly exists because of an incorrect fix for CVE-2009-1302.

    Published:Apr 27, 2009
    Last Modified:Apr 23, 2026
    EPS:Apr 30, 2009
    EPSS Score:0.32166
    CVSS Score:9.3

    Affected Products

    Vendor
    Mozilla
    Product
    Firefox
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    https://www.exploit-db.com/exploits/32961

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-84144 (CVSS 7.5) — Internally found bugs present in Thunderbird 154 and Thunderbird ESR 153.1. Some of these bugs showed evidence…
    CVE-2026-84143 (CVSS 9.8) — Internally found bugs present in Thunderbird 154, Thunderbird ESR 153.1 and Thunderbird ESR 140.14. Some of th…
    CVE-2026-84142 (CVSS 9.8) — Internally found bugs present in Thunderbird 154. Some of these bugs showed evidence of memory corruption or a…
    CVE-2026-84141 (CVSS 9.8) — Integer overflow in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 155, Firefox ESR…
    CVE-2026-84140 (CVSS 9.8) — Site isolation issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ES…
    CVE-2026-84139 (CVSS 6.1) — Clickjacking issue in the DOM: Events component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.…
    CVE-2026-84138 (CVSS 6.5) — Denial-of-service in the PDF Viewer component. This vulnerability was fixed in Firefox 155 and Thunderbird 155…
    CVE-2026-84137 (CVSS 4.3) — Spoofing issue in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 155, Firefox ESR 153…
    CVE-2026-84136 (CVSS 6.1) — Other issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, …
    CVE-2026-84135 (CVSS 9.8) — Other issue in Firefox Focus for Android. This vulnerability was fixed in Firefox 155.…

    References

    http://secunia.com/advisories/34851
    http://secunia.com/advisories/34866
    http://secunia.com/advisories/34910
    http://secunia.com/advisories/34919
    http://securitytracker.com/id?1022126
    http://securitytracker.com/id?1022127
    http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.350967
    http://www.mandriva.com/security/advisories?name=MDVSA-2009:111
    http://www.mozilla.org/security/announce/2009/mfsa2009-23.html
    http://www.securityfocus.com/bid/34743
    http://www.ubuntu.com/usn/USN-765-1
    http://www.vupen.com/english/advisories/2009/1180
    https://bugzilla.mozilla.org/show_bug.cgi?id=489647
    https://bugzilla.mozilla.org/show_bug.cgi?id=489676
    https://bugzilla.mozilla.org/show_bug.cgi?id=490233
    https://bugzilla.redhat.com/show_bug.cgi?id=497447
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10446
    https://rhn.redhat.com/errata/RHSA-2009-0449.html
    http://secunia.com/advisories/34851
    http://secunia.com/advisories/34866
    http://secunia.com/advisories/34910
    http://secunia.com/advisories/34919
    http://securitytracker.com/id?1022126
    http://securitytracker.com/id?1022127
    http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.350967
    http://www.mandriva.com/security/advisories?name=MDVSA-2009:111
    http://www.mozilla.org/security/announce/2009/mfsa2009-23.html
    http://www.securityfocus.com/bid/34743
    http://www.ubuntu.com/usn/USN-765-1
    http://www.vupen.com/english/advisories/2009/1180
    https://bugzilla.mozilla.org/show_bug.cgi?id=489647
    https://bugzilla.mozilla.org/show_bug.cgi?id=489676
    https://bugzilla.mozilla.org/show_bug.cgi?id=490233
    https://bugzilla.redhat.com/show_bug.cgi?id=497447
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10446
    https://rhn.redhat.com/errata/RHSA-2009-0449.html

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High